Table 1 Baseline characteristics of the study population
From: Vascular health, diabetes, APOE and dementia: the Aging, Demographics, and Memory Study
Variables | Non-demented controls (n = 548) | All-cause dementia (n = 308) | Alzheimer's disease (n = 229) | Vascular dementia (n = 48) |
|---|---|---|---|---|
Mean age (SD), years | 78.3 (6.3) | 84.5 (6.9) | 85.5 (6.7) | 84.0 (6.2) |
Women, n (%) | 288 (59.4) | 213 (68.5) | 170 (71.5) | 28 (62.1) |
Education, n (%) | ||||
8 years or less | 166 (14.8) | 125 (33.5) | 93 (32.3) | 18 (33.8) |
9 years or more | 382 (85.2) | 183 (66.5) | 136 (67.7) | 30 (66.2) |
Ethnic origin, n (%) | ||||
White | 395 (87.7) | 218 (83.4) | 162 (82.1) | 36 (87.3) |
Black | 92 (6.9) | 67 (12.4) | 49 (12.9) | 9 (10.5) |
Hispanic | 61 (5.4) | 23 (4.2) | 18 (5.0) | 3 (2.2) |
HRS wave*, n (%) | ||||
2000 | 157 (31.8) | 136 (34.4) | 98 (34.5) | 26 (42.3) |
2002 | 391 (68.2) | 172 (65.6) | 131 (65.6) | 22 (57.7) |
Mean MMSE total (SD) | 27.0 (4.1) | 15.9 (6.4) | 15.4 (6.4) | 18.7 (5.9) |
Hypertension, n (%) | ||||
Untreated | 98 (14.9) | 61 (23.8) | 53 (27.0) | 5 (24.0) |
Treated | 308 (58.6) | 150 (44.2) | 100 (38.8) | 32 (56.8) |
Diabetes, n (%) | ||||
Untreated | 14 (2.1) | 16 (4.7) | 12 (4.2) | 1 (1.3) |
Treated | 109 (17.9) | 31 (11.9) | 12 (7.2) | 9 (12.5) |
Heart disease, n (%) | ||||
Untreated | 36 (6.1) | 32 (11.5) | 25 (9.9) | 3 (18.3) |
Treated | 144 (22.3) | 79 (28.2) | 53 (28.2) | 18 (31.8) |
Stroke, n (%) | ||||
Untreated | 114 (17.7) | 150 (51.6) | 98 (46.0) | 36 (82.4) |
Treated | 22 (3.8) | 24 (7.6) | 13 (5.2) | 10 (15.2) |
APOE ε4, n (%) | 125 (24.4) | 110 (38.6) | 87 (38.4) | 11 (35.7) |